Refactor Format Message, step 1

Source/Integration/LuprexK2Node.h

@@ -17,6 +17,9 @@ protected:
 	/** Add a single-char prefix to a pin name, e.g. AddPrefix("foo", 'A') -> "A:foo" */
 	static FName AddPrefix(const FString &Name, char Prefix);
 
+	/** Check if a pin name has a given single-char prefix. */
+	static bool HasPrefix(FName Name, char Prefix);
+
 	/** Strip a single-char prefix from a pin name, returning the original name if no prefix is found. */
 	static FName RemovePrefix(FName Name);